Automatic oiler for caliber 50 cartridge cases for tapering machines



1944- L. J. ZNAMIEROWSKI 2,364,683

AUTOMATIC OILER FOR CALIBER .50 CARTRIDGE CASES FOR TAPERING MACHINES Filed July 16, 1942 I /5/ ll? Louis LI Znaimieruwaki' Patented Dec. 1-2, 1944 AUTOMATIC OILER FOR CALIBER .50

CARTRIDGE CASES FOR TAPERING MA- CHINES Louis J. Znamierowski, Philadelphia, Pa. Application July 16, 1942, Serial No. 451,237

(Granted under the act of March 3, 1883, as

amended April 30, 1928; 370 O. G. 757) 4 Claims.

The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

This invention relates to an oiler for cartridge cases and particularly relates to a neck oiler for small arms cases such as .30 and .50 caliber cases.

In the manufacture of cartridge cases by a series of drawing and forming operations it is desirable to lubricate the cases with an oil such as lard oil when performing necking and tapering operations to assist in forming and to insure smoother work. In the past such devices have employed a number of moving parts and were subject to failure of mechanical parts and the wastage of 011. Such failure was especially pro.- nounced when it was attempted to adapt oilers of the type used on .30 caliber cases to the oiling of .50 caliber cases.

It is therefore the object of the present invention to provide an oiler for cartridge cases which operates substantially without moving parts, which is efllcient in the oiling of cases and which does not waste oil.

In the drawing, Figure 1 illustrates the general type of machine on which the present invention is applicable and Figure 2 is the front elevation of the oiler which constitutes the present invention.

Referring to the drawing by reference characters, there is shown a rotating table I which has a series of openings 2 around its edge each of which is adapted to receive the base of a cartridge case. Above the table a tool holder 3 is suspended. On this tool holder are attached the various tools for performing the desired operations on the cases. In the particular embodiment illustrated, there are shown the oiler 4, a feeler 5, a mouthing tool 6, two necking and tapering dies 1 and 8 and a mouth resizing die 9. In operation, the tool holder 3 moves up and down so that the tools are brought into contactwith the cartridge cases located in openings 2 on the down stroke. The rotating table I is arranged so that it rotates to a new station on the upstroke of the tool holder. The actuating machinery is conventional and has, therefore, not been illustrated.

The oiler itself consists of columns H) which support a cross member l2. On cross member I2 other columns II support a second cross member I 6.. The inside oiler is supported by cross member i2 and consists of an inverted conical shaped oil holder I I held in place by a tube I3. Near the apex of the conical shaped oil holder a circumferential groove is cut, into which is inserted a circular pad of an oil absorptive substance IS.

The outside oiler consists of cross member 16 through which a circular hole i1 is cut. In the circular hole an annular recess I8 is provided in which is inserted a doughnut shaped pad IQ of oil absorptive substance. To supply oil to the oiler reservoirs 20 are provided which communicate with the oil absorptive parts by means 'of tubes 2|. Preferably the oilers have means 22 for regulating the flow of oil.

The oil absorptive pads may consist of leather, felt, cloth, hair bristles or similar oil retentive substances.

In operation, the oiler is brought down over the open end of a cartridge case and the outside oiler I'6 spreads a thin layer of oil over the outside of the case. inside oiler It comes into contact with the mouth of the case, depositing a small quantity of oil inside the mouth.

If desired, supports l0 and tube l3 can be made so that they can telescope and are held extended by means of suitable springs. In this manner the oiler is protected in case of a mis-feed in the machine.

I claim:

1. An oiler for cartridge cases and the like cylindrical objects comprising a table support, a standard centrally of and depending from said support and having an axial passage, an inverted conical member on the lower portion of said standard and having an annular groove in its slant surface, a porous oil dispensing member of annular shape received in said groove, :3. second table support attached to said first table support lying below the said conical member and having a central circular opening with an annular channel in the inner surface thereof, and a porous oil dispensing member of annular shape received therein, said circular opening being concentric with the axis of said conical member.

2. An oiling device for cartridge cases and the like, generally cylindrical and having portions differing slightly in diameter comprising upper and lower supports joined together, an annular dispensing device in the lower support and adapted to apply oil to the work upon its projection through said annular dispensing device, a circular oil dispensing device in the upper support in axial alignment with the dispensing device in the lower support and adapted to supply 011 to another part of the work upon the projection of said work, the dispensing device in the upper support havinga periphery of smaller diameter than the annular dispensing device in the lower support.

3. The invention of claim 2 characterized in that each of the supports is provided with an annular groove for the reception of their respective dispensing devices, said devices comprising rings of porous resilient material.

4. The invention of claim 2 characterized in that there are oil reservoirs attached to and carried by the upper and lower supports and communicating with the dispensing devices on their respective supports.

LOUIS J. ZNAMIEROWSKI.

At the lower end of the stroke, the 

